Class TBGRAWriterPNG
Unit
Declaration
type TBGRAWriterPNG = class(TBGRACustomWriterPNG)
Description
Extends the TFPCustomImageWriter to write the PNG image format
Hierarchy
- TFPCustomImageWriter
- TBGRACustomWriterPNG
- TBGRAWriterPNG
Overview
Methods
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constructor Create; override; |
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destructor Destroy; override; |
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function ColorDataColorAB(color:TFPColor) : TColorData; |
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function ColorDataColorAW(color:TFPColor) : TColorData; |
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function ColorDataColorB(color:TFPColor) : TColorData; |
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function ColorDataColorW(color:TFPColor) : TColorData; |
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function ColorDataGrayAB(color:TFPColor) : TColorData; |
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function ColorDataGrayAW(color:TFPColor) : TColorData; |
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function ColorDataGrayB(color:TFPColor) : TColorData; |
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function ColorDataGrayW(color:TFPColor) : TColorData; |
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function CurrentLine(x:LongWord) : byte; inline; |
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function DecideGetPixel: TGetPixelFunc; virtual; |
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function DecideGetPixelBGRA: TGetPixelBGRAFunc; virtual; |
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function DetermineFilter(Current, Previous:PByteArray; linelength:LongWord):byte; virtual; |
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function DoFilter(LineFilter:byte;index:LongWord; b:byte) : byte; virtual; |
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function GetUseAlpha: boolean; override; |
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function PreviousLine(x:LongWord) : byte; inline; |
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function PrevLinePrevSample(x:LongWord): byte; inline; |
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function PrevSample(x:LongWord): byte; inline; |
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procedure AnimationWrite(AStream: TStream; AImage:TFPCustomImage; AAnimation: TPNGArrayOfFrameToWrite; ARepeatCount: integer = 0); |
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procedure DetermineHeader(var AHeader : THeaderChunk); virtual; |
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procedure FillScanLine(y : integer; ScanLine : pByteArray); virtual; |
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procedure InternalWrite(Str:TStream; Img:TFPCustomImage); override; |
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procedure SetChunkLength(aValue : LongWord); |
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procedure SetChunkType(ct : TChunkTypes); overload; |
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procedure SetChunkType(ct : TChunkCode); overload; |
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procedure SetUseAlpha(AValue: boolean); override; |
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procedure WriteacTL; virtual; |
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procedure WritefcTL(AIndex: integer); virtual; |
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procedure WritefdAT(AIndex: integer); virtual; |
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procedure WriteIDAT; virtual; |
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procedure WriteIEND; virtual; |
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procedure WriteIHDR; virtual; |
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procedure WriteImageData(AImage: TFPCustomImage; AImageDataChunkCode: TChunkCode); virtual; |
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procedure WritePLTE; virtual; |
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procedure WriteResolutionValues; virtual; |
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procedure WriteTexts; virtual; |
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procedure WritetRNS; virtual; |
Properties
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property byteWidth : byte read FByteWidth; |
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property ChunkDataBuffer : pByteArray read FChunk.data; |
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property ColorFormat : TColorformat read CFmt; |
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property ColorFormatFunc : TColorFormatFunction read FFmtColor; |
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property CompressedText : boolean read FCompressedText write FCompressedText; |
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property CompressionLevel : TCompressionLevel read FCompressionLevel write FCompressionLevel; |
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property CustomPalette: TFPPalette read FCustomPalette write FCustomPalette; |
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property DatalineLength : LongWord read FDatalineLength; |
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property GrayScale : boolean read FGrayscale write FGrayScale; |
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property Header : THeaderChunk read FHeader; |
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property Indexed : boolean read FIndexed write FIndexed; |
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property SingleTransparentColor : TFPColor read FTransparentColor; |
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property SingleTransparentColorOk : boolean read FTransparentColorOk; |
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property ThePalette : TFPPalette read FPalette; |
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property UsetRNS : boolean read FUsetRNS; |
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property WordSized : boolean read FWordSized write FWordSized; |
Description
Methods
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constructor Create; override; |
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This item has no description. | |
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destructor Destroy; override; |
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This item has no description. | |
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function ColorDataColorAB(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataColorAW(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataColorB(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataColorW(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataGrayAB(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataGrayAW(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataGrayB(color:TFPColor) : TColorData; |
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This item has no description. | |
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function ColorDataGrayW(color:TFPColor) : TColorData; |
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This item has no description. | |
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function CurrentLine(x:LongWord) : byte; inline; |
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This item has no description. | |
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function DecideGetPixel: TGetPixelFunc; virtual; |
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This item has no description. | |
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function DecideGetPixelBGRA: TGetPixelBGRAFunc; virtual; |
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This item has no description. | |
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function DetermineFilter(Current, Previous:PByteArray; linelength:LongWord):byte; virtual; |
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This item has no description. | |
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function DoFilter(LineFilter:byte;index:LongWord; b:byte) : byte; virtual; |
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This item has no description. | |
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function GetUseAlpha: boolean; override; |
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This item has no description. Showing description inherited from TBGRACustomWriterPNG.GetUseAlpha. Gets whether or not to use the alpha channel | |
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function PreviousLine(x:LongWord) : byte; inline; |
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This item has no description. | |
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function PrevLinePrevSample(x:LongWord): byte; inline; |
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This item has no description. | |
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function PrevSample(x:LongWord): byte; inline; |
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This item has no description. | |
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procedure AnimationWrite(AStream: TStream; AImage:TFPCustomImage; AAnimation: TPNGArrayOfFrameToWrite; ARepeatCount: integer = 0); |
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This item has no description. | |
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procedure DetermineHeader(var AHeader : THeaderChunk); virtual; |
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This item has no description. | |
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procedure FillScanLine(y : integer; ScanLine : pByteArray); virtual; |
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This item has no description. | |
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procedure InternalWrite(Str:TStream; Img:TFPCustomImage); override; |
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This item has no description. | |
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procedure SetChunkLength(aValue : LongWord); |
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This item has no description. | |
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procedure SetChunkType(ct : TChunkTypes); overload; |
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This item has no description. | |
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procedure SetChunkType(ct : TChunkCode); overload; |
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This item has no description. | |
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procedure SetUseAlpha(AValue: boolean); override; |
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This item has no description. Showing description inherited from TBGRACustomWriterPNG.SetUseAlpha. Sets whether or not to use the alpha channel | |
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procedure WriteacTL; virtual; |
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This item has no description. | |
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procedure WritefcTL(AIndex: integer); virtual; |
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This item has no description. | |
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procedure WritefdAT(AIndex: integer); virtual; |
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This item has no description. | |
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procedure WriteIDAT; virtual; |
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This item has no description. | |
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procedure WriteIEND; virtual; |
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This item has no description. | |
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procedure WriteIHDR; virtual; |
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This item has no description. | |
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procedure WriteImageData(AImage: TFPCustomImage; AImageDataChunkCode: TChunkCode); virtual; |
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This item has no description. | |
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procedure WritePLTE; virtual; |
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This item has no description. | |
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procedure WriteResolutionValues; virtual; |
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This item has no description. | |
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procedure WriteTexts; virtual; |
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This item has no description. | |
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procedure WritetRNS; virtual; |
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This item has no description. | |
Properties
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property byteWidth : byte read FByteWidth; |
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This item has no description. | |
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property ChunkDataBuffer : pByteArray read FChunk.data; |
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This item has no description. | |
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property ColorFormat : TColorformat read CFmt; |
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This item has no description. | |
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property ColorFormatFunc : TColorFormatFunction read FFmtColor; |
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This item has no description. | |
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property CompressedText : boolean read FCompressedText write FCompressedText; |
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This item has no description. | |
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property CompressionLevel : TCompressionLevel read FCompressionLevel write FCompressionLevel; |
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This item has no description. | |
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property CustomPalette: TFPPalette read FCustomPalette write FCustomPalette; |
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This item has no description. | |
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property DatalineLength : LongWord read FDatalineLength; |
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This item has no description. | |
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property GrayScale : boolean read FGrayscale write FGrayScale; |
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loop count (0 for infinite loop) | |
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property Header : THeaderChunk read FHeader; |
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This item has no description. | |
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property Indexed : boolean read FIndexed write FIndexed; |
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This item has no description. | |
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property SingleTransparentColor : TFPColor read FTransparentColor; |
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This item has no description. | |
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property SingleTransparentColorOk : boolean read FTransparentColorOk; |
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This item has no description. | |
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property ThePalette : TFPPalette read FPalette; |
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This item has no description. | |
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property UsetRNS : boolean read FUsetRNS; |
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This item has no description. | |
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property WordSized : boolean read FWordSized write FWordSized; |
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This item has no description. | |